- 1(current)
Q. No.Red muscle fibres when compared to the white muscle fibres have a higher:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | number of mitochondria |
| II: | number of blood capillaries |
| III: | myoglobin content |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Â Skeletal Muscle: Sarcomere |
 57%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Consider the statements given below and choose the option that correctly states them as true (T) or false (F)
| (a) | Locomotion, changes of body postures and heat production are some of the functions of skeletal muscle tissue |
| (b) | Actin filaments are firmly attached to the Z-line |
| (c) | The portion of myofibril between non-consecutive 'Z' lines is called sacromere |
| (d) | Muscles constitute more than 50% of the body weight in an adult human |
| a | b | c | d | |
| 1. | T | T | T | T |
| 2. | T | F | F | T |
| 3. | T | T | F | F |
| 4. | F | T | T | T |
Subtopic: Â Introduction to Locomotion |Â Skeletal Muscle: Basic Anatomy |Â Skeletal Muscle: Sarcomere |
 57%
Level 3: 35%-60%
Hints
The H-zone in the skeletal muscle fibre is due to:
| 1. | The central gap between myosin filaments in the A-band. |
| 2. | The central gap between actin filaments extends through myosin filaments in the A-band. |
| 3. | Extension of myosin filaments in the central portion of the A-band |
| 4. | The absence of myofibrils in the central portion of the A-band. |
Subtopic: Â Skeletal Muscle: Sarcomere |
 59%
Level 3: 35%-60%
AIPMT - 2013
Hints
Which of the following statements are correct regarding skeletal muscle?
Choose the most appropriate answer from the options given below:
| A: | Muscle bundles are held together by collagenous connective tissue layer called fascicle. |
| B: | Sarcoplasmic reticulum of muscle fibre is a store house of calcium ions. |
| C: | Striated appearance of skeletal muscle fibre is due to distribution pattern of actin and myosin proteins. |
| D: | M line is considered as functional unit of contraction called sarcomere. |
| 1. | C and D only | 2. | A, B and C only |
| 3. | B and C only | 4. | A, C and D only |
Subtopic: Â Skeletal Muscle: Basic Anatomy |Â Skeletal Muscle: Myofilaments |Â Skeletal Muscle: Sarcomere |
 55%
Level 3: 35%-60%
NEET - 2023
Hints
- 1(current)
Q. No.
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